/* Reading first: the diary stays open; practical reference notes open on demand. */
/* A reference jump may span tens of thousands of pixels; do not animate that travel. */
html { scroll-behavior: auto; }
.field-section { padding: clamp(56px, 7vw, 100px) var(--gutter); border-top: 1px solid var(--line); }
.field-shell { width: 100%; max-width: 1180px; margin-inline: auto; min-width: 0; }
.field-section h2 { margin: 12px 0 24px; font-family: Georgia, "Noto Serif KR", "Batang", serif; font-size: clamp(30px, 3.8vw, 50px); font-weight: 500; line-height: 1.45; letter-spacing: -.045em; }
.field-kicker { margin: 0; color: var(--deep); font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.field-lead { max-width: 790px; margin: 0 0 36px; color: var(--ink-soft); font-size: 17px; line-height: 2; }
.field-jumps { display: flex; flex-wrap: wrap; gap: 4px 22px; margin-top: 30px; max-width: 640px; }
.field-jumps a { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 750; }
.field-jumps a:hover, .note-return:hover { color: var(--deep); border-color: var(--deep); }
.field-section a:focus-visible, .field-section button:focus-visible,
.field-jumps a:focus-visible, .field-note a:focus-visible,
.field-section summary:focus-visible, .field-note summary:focus-visible,
.field-table-wrap:focus-visible { outline: 3px solid var(--deep); outline-offset: 5px; }
.field-plan { background: var(--white); }
.strategy-note, .field-toc, .worksheet { border-top: 1px solid var(--line); }
.strategy-note:last-of-type, .worksheet:last-of-type { border-bottom: 1px solid var(--line); }
.strategy-note > summary, .field-toc > summary, .worksheet > summary {
  position: relative; padding: 24px 40px 24px 0; list-style: none; cursor: pointer;
}
.strategy-note > summary::-webkit-details-marker,
.field-toc > summary::-webkit-details-marker,
.worksheet > summary::-webkit-details-marker,
.field-note > summary::-webkit-details-marker { display: none; }
.strategy-note > summary::after, .field-toc > summary::after, .worksheet > summary::after {
  content: "+"; position: absolute; right: 4px; top: 21px; color: var(--deep); font-size: 24px; font-weight: 400;
}
.strategy-note[open] > summary::after, .field-toc[open] > summary::after, .worksheet[open] > summary::after { content: "−"; }
.strategy-note > summary strong, .field-toc > summary strong, .worksheet > summary strong { display: block; font-size: 20px; font-weight: 750; line-height: 1.6; }
.strategy-note > summary span, .field-toc > summary span, .worksheet > summary span { display: block; margin-top: 4px; color: var(--ink-soft); font-size: 14px; }
.strategy-body, .worksheet-body { padding: 2px 0 32px; font-size: 16px; line-height: 1.95; overflow-wrap: anywhere; }
.strategy-body > p, .worksheet-body > p { max-width: 880px; margin: 0 0 22px; }
.strategy-body ul, .strategy-body ol, .worksheet-body ul { padding-left: 24px; }
.strategy-body li, .worksheet-body li { margin-bottom: 12px; padding-left: 3px; }
.field-table-wrap { max-width: 100%; overflow-x: auto; margin: 28px 0; border: 1px solid var(--line); }
.field-table-hint { display: none; }
.field-table { width: 100%; min-width: 690px; border-collapse: collapse; font-size: 14px; line-height: 1.85; }
.field-table caption { padding: 14px 18px; text-align: left; color: var(--ink-soft); background: var(--paper); font-size: 13px; }
.field-table th, .field-table td { padding: 18px; text-align: left; vertical-align: top; border-top: 1px solid var(--line); }
.field-table thead th { color: var(--white); background: var(--deep); font-weight: 700; }
.field-table tbody th { width: 20%; color: var(--deep); background: var(--cloud); font-weight: 750; }
.field-table td { width: 26.66%; }
.field-deliverables { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 28px 0; }
.field-deliverables > div { padding: 22px; background: var(--cloud); }
.field-deliverables dt { margin-bottom: 8px; color: var(--deep); font-weight: 800; }
.field-deliverables dd { margin: 0; font-size: 15px; }
.proposal-sample { max-width: 880px; margin: 30px 0 0; padding: 26px; border: 1px solid var(--deep); }
.proposal-sample h3 { margin: 10px 0 22px; font-size: 21px; line-height: 1.6; }
.proposal-sample p { margin: 0 0 20px; font-size: 15px; }
.proposal-sample .field-kicker { font-size: 12px; }
.proposal-sample p:last-child { margin-bottom: 0; }
.field-cycle { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; padding: 0 !important; margin: 26px 0; }
.field-cycle li { margin: 0; padding: 20px; border-left: 3px solid var(--deep); background: var(--paper); }
.field-cycle strong { display: block; margin-bottom: 8px; color: var(--deep); }
.field-cycle span { display: block; font-size: 15px; }
.field-callout { margin-top: 30px; padding: 26px 30px; background: var(--cloud); border-left: 3px solid var(--deep); }
.field-callout > strong { display: block; margin-bottom: 10px; font-size: 17px; }
.field-callout p { max-width: 950px; margin: 0; font-size: 15px; line-height: 2; }
.field-index { background: var(--paper); }
.field-toc ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 34px; margin: 0; padding: 0 0 30px; list-style: none; counter-reset: field-item; }
.field-toc li { min-width: 0; counter-increment: field-item; }
.field-toc li a { display: flex; gap: 14px; align-items: baseline; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 15px; line-height: 1.8; }
.field-toc li a > span { flex: 0 0 20px; color: var(--deep); font-size: 12px; font-variant-numeric: tabular-nums; }
.field-toc li a:hover { color: var(--deep); }
.field-note { margin-top: 26px; border: 1px solid #9cbcc6; background: var(--white); overflow-wrap: anywhere; }
.field-note > summary { padding: 24px 28px; list-style: none; cursor: pointer; }
.field-note > summary:hover { background: var(--cloud); }
.field-note-label { display: block; margin-bottom: 10px; color: var(--deep); font-size: 12px; font-weight: 800; letter-spacing: .03em; }
.field-note > summary strong { display: block; font-size: clamp(18px, 1.6vw, 22px); font-weight: 750; line-height: 1.65; letter-spacing: -.03em; }
.field-note-toggle { display: block; margin-top: 16px; color: var(--deep); font-size: 12px; font-weight: 750; }
.field-note[open] > summary { background: var(--cloud); border-bottom: 1px solid #9cbcc6; }
.field-note[open] .field-note-toggle { font-size: 0; }
.field-note[open] .field-note-toggle::after { content: "대응 순서 접기 −"; font-size: 12px; }
.field-note-body { padding: 30px 28px; }
.episode-body .field-note-body p, .field-note-body dd, .field-note-body li { font-size: 15px; line-height: 1.95; }
.episode-body .field-note-body p { margin: 0 0 18px; }
.field-note-body h3 { margin: 26px 0 10px; font-size: 16px; font-weight: 800; line-height: 1.7; }
.field-note-body h3 small { display: block; margin-top: 3px; color: var(--ink-soft); font-size: 12px; font-weight: 400; }
.wrong-answer { margin: 0; }
.wrong-answer > div + div { margin-top: 18px; }
.wrong-answer dt { margin-bottom: 6px; color: var(--ink-soft); font-size: 12px; font-weight: 800; }
.wrong-answer dd { margin: 0; }
.response-line { margin: 12px 0 26px; padding: 22px; color: var(--deep); border-left: 3px solid var(--deep); background: var(--cloud); font-size: 16px; line-height: 2; }
.field-note-body ol { margin: 10px 0 26px; padding-left: 24px; }
.field-note-body li { margin-bottom: 14px; padding-left: 3px; }
.stop-rule { margin: 28px 0; padding: 20px 22px; border: 1px solid var(--line); border-top: 3px solid var(--ink); }
.field-note-body .stop-rule h3, .field-note-body .rehearsal h3 { margin-top: 0; }
.episode-body .stop-rule p, .episode-body .rehearsal p { margin: 0; }
.rehearsal { padding: 20px 22px; background: var(--paper); }
.episode-body .field-source-note { margin-top: 22px; color: var(--ink-soft); font-size: 12px; }
.field-source-note a, .field-sources a { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.note-return { display: inline-block; margin-top: 24px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 750; }
.field-kit { background: var(--white); }
.field-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 0 0 32px; }
.field-tools a, .field-tools button { display: inline-flex; align-items: center; justify-content: center; gap: 24px; min-height: 46px; padding: 12px 20px; border: 1px solid var(--deep); border-radius: 0; color: var(--deep); background: transparent; font-size: 13px; font-weight: 750; cursor: pointer; }
.field-tools a { color: var(--white); background: var(--deep); }
.field-tools a:hover { background: var(--ink); }
.field-tools button:hover { background: var(--cloud); }
.field-tools [hidden] { display: none !important; }
.worksheet pre { padding: 24px; background: var(--paper); border: 1px solid var(--line); font: inherit; font-size: 14px; line-height: 2.25; white-space: pre-wrap; overflow-wrap: anywhere; }
.response-sequence { list-style: none; margin: 16px 0 24px; padding: 0; counter-reset: response-step; }
.response-sequence li { display: grid; grid-template-columns: 72px 1fr; gap: 16px; padding: 16px 0; margin: 0; border-bottom: 1px solid var(--line); counter-increment: response-step; }
.response-sequence strong { color: var(--deep); }
.response-sequence strong::before { content: counter(response-step) ". "; }
.cost-example { max-width: 740px; margin: 24px 0; border-top: 1px solid var(--line); font-size: 15px; }
.cost-example > div { display: grid; grid-template-columns: 1fr auto; gap: 20px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.cost-example dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.cost-example .cost-result { color: var(--deep); font-weight: 800; border-bottom: 2px solid var(--deep); }
.field-sources .field-shell { max-width: 920px; }
.field-sources h2 { font-size: clamp(28px, 3vw, 40px); }
.field-sources p { color: var(--ink-soft); font-size: 14px; line-height: 2; }
.field-sources ol { padding-left: 22px; margin: 30px 0; }
.field-sources li { padding: 18px 0 12px 8px; border-top: 1px solid var(--line); }
.field-sources li > a { color: var(--deep); font-size: 15px; font-weight: 750; }
.field-boundary { padding-top: 24px; border-top: 1px solid var(--line); }
@media (max-width: 680px) {
  /* Keep the fixed, mid-right top button beside the reading column, not over it. */
  .field-section, .diary-shell { padding-right: calc(var(--gutter) + 44px); }
  .strategy-body .field-table-hint { display: block; margin: 22px 0 -12px; color: var(--deep); font-size: 12px; }
  .field-lead { font-size: 16px; }
  .field-jumps { gap: 0 18px; }
  .field-jumps a { font-size: 12px; }
  .strategy-note > summary strong, .worksheet > summary strong, .field-toc > summary strong { font-size: 18px; }
  .field-deliverables, .field-cycle, .field-toc ol { grid-template-columns: 1fr; }
  .field-callout { padding: 22px; }
  .field-note > summary, .field-note-body { padding: 22px 20px; }
  .response-line, .stop-rule, .rehearsal { padding: 18px; }
  .worksheet pre { padding: 18px; }
  .response-sequence li { grid-template-columns: 60px 1fr; gap: 10px; }
  .field-tools { align-items: stretch; }
  .field-tools a, .field-tools button { flex: 1 1 220px; }
  .cost-example > div { gap: 12px; }
}
@media print {
  @page { margin: 16mm; }
  html, body { color: #000; background: #fff; overflow: visible; scroll-behavior: auto; }
  .site-header, .scroll-progress, .floating-top, .skip-link, .field-jumps,
  .field-tools, .note-return, .field-note-toggle { display: none !important; }
  .field-section { padding: 28px 0; background: #fff; }
  .field-section h2 { font-size: 24pt; }
  .field-section p, .field-note-body p, .field-note-body li, .field-note-body dd { font-size: 10.5pt !important; line-height: 1.7 !important; }
  .field-table-wrap { overflow: visible; }
  .field-table { min-width: 0; font-size: 9pt; }
  .field-table th, .field-table td { padding: 10px; }
  .field-table thead th { color: #000; background: #eee; }
  .field-deliverables, .field-cycle { grid-template-columns: 1fr; }
  .field-note { margin: 24px 0; background: #fff; }
  .field-note > summary { padding: 18px; break-after: avoid; }
  .field-note > summary strong { font-size: 15pt; }
  .field-note-body { padding: 18px; }
  .field-note-body h3, .worksheet > summary, .strategy-note > summary { break-after: avoid; }
  .field-note-body blockquote, .stop-rule, .rehearsal, .field-deliverables > div { break-inside: avoid; }
  .field-note-body blockquote { font-size: 11pt; }
  .worksheet pre { font-size: 10pt; }
  .print-field-notes .diary-hero, .print-field-notes .premise,
  .print-field-notes .market-map, .print-field-notes .field-index,
  .print-field-notes .wish, .print-field-notes .related-reading,
  .print-field-notes .article-footer, .print-field-notes .diary-head,
  .print-field-notes .episode-meta { display: none !important; }
  .print-field-notes .diary-shell { width: 100%; max-width: none; padding: 0; }
  .print-field-notes .episode { display: block; padding: 0; border: 0; }
  .print-field-notes .episode-body > :not(.field-note) { display: none !important; }
}